The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 373
dvan-tages besides simplicity are, however, its effectiveness incases where the sending operator wants all possible sta-tions to hear him, as, for instance, when a ship needs help,and secondly its military use in purposely drowning out or jamming other signals which an enemy is trying to re-ceive.…
Telegraph, Wireless · Radio
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